Study on sensitivity of sensitive material to CO2 based on doped SnO2-La2O3

ZHANG Zheng-yong1; ZHAO Xue-yu1

doi:10.13873/j.1000-97872011.10.031

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Study on sensitivity of sensitive material to CO₂ based on doped SnO₂-La₂O₃

更新时间：2025-09-11

- Study on sensitivity of sensitive material to CO₂ based on doped SnO₂-La₂O₃
- Vol. 30, Issue 10, Pages: 59-61(2011)
- 作者机构：
  
  1. 中国科学院合肥物质科学研究院合肥智能机械研究所
  2. 安徽省仿生感知与先进机器人技术重点实验室
  3. 传感技术联合国家重点实验室
  4. 中国科学技术大学化学与材料科学学院化学系
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872011.10.031
  CLC： TP212
- Published：2011
- 稿件说明：
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[1]张正勇,赵雪宇.基于SnO_2-La_2O_3掺杂的敏感材料CO_2气敏特性研究[J].传感器与微系统,2011,30(10):59-61.

ZHANG Zheng-yong1, ZHAO Xue-yu1. Study on sensitivity of sensitive material to CO₂ based on doped SnO₂-La₂O₃[J]. 2011, 30(10): 59-61.
[1]张正勇,赵雪宇.基于SnO_2-La_2O_3掺杂的敏感材料CO_2气敏特性研究[J].传感器与微系统,2011,30(10):59-61. DOI： 10.13873/j.1000-97872011.10.031.

ZHANG Zheng-yong1, ZHAO Xue-yu1. Study on sensitivity of sensitive material to CO₂ based on doped SnO₂-La₂O₃[J]. 2011, 30(10): 59-61. DOI： 10.13873/j.1000-97872011.10.031.

摘要

以半导体氧化物SnO2为基体材料加入40%的活性La2O3材料

制备出了对CO2具有敏感性的气体敏感材料

其检测体积分数范围为（0～5000）×10-6。实验结果表明:在SnO2-La2O3敏感材料的基础上掺杂适量CeO2

Ag2O

SiO2等氧化物

不仅提高了其对CO2气体的灵敏度

而且可以提高其稳定性

从而大大改善了其对CO2的敏感特性。在实验结果的基础上

分析并讨论上该系列材料对CO2气体的敏感机制。基于这种敏感材料的CO2气体传感器具有结构简单、制备简便、使用方便和价格低廉等优点

可用于空气环境监控和农用大棚等场合。

Abstract

A sensitive material is prepared with metal oxide semiconductor SnO2 and 40 % active La2O3

exhibits the sensitivity to CO2.The mixture can measure the volume fraction of CO2（0

000）×10-6.The experimental results show that the sensitivity and the stability of the SnO2-La2O3 sensitive material have been enhanced by the addition of appropriate amount of metal oxides as CeO2

Ag2O and SiO2.The mixture with the addition has a higher sensibility to CO2.On the basis of the experimental result of this series of materials

the mechanism of sensitivity to CO2 is analyzed and discussed.The CO2 gas sensor based on these sensitive materials has many advan

tages such as simple structure

easy preparation

convenient operation

low price.It can be used for environmental monitoring of air and agricultural greenhouses.

关键词

Keywords

references

The influence of CO 2 on ISFETs with polymer membranes and characterization of a carbonate ion sensor [J] . Natalia Abramova,Sergey Levichev,Andrey Bratov. Talanta . 2010 (4)

Detection of CO 2 in solution with a Pt–NiO solid-state sensor [J] . Zhao Yue,Wencheng Niu,Wei Zhang,Guohua Liu,Wolfgang J. Parak. Journal of Colloid And Interface Science . 2010 (1)

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